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General description

The 74LVC623A is a high-performance, low-power, low-voltage, Si-gate CMOS device, superior to most advanced CMOS compatible TTL families.

Inputs can be driven from either 3.3 V or 5 V devices. In 3-state operation, outputs can handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V or 5 V environment.

The 74LVC623A is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. This octal bus transceiver is designed for asynchronous two-way communication between data buses.

The control function implementation allows maximum flexibility in timing. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic levels at the enable inputs (pins OEAB and OEBA). The enable inputs can be used to disable the device so that the buses are effectively isolated. The dual enable function configuration gives this transceiver the capability to store data by simultaneous enabling of pins OEAB and OEBA. Each output reinforces its input in this transceiver configuration. Thus, when both control inputs are enabled and all other data sources to the two sets of the bus lines are at high-impedance OFF-state, both sets of the bus lines will remain at their last states. The 8-bit codes appearing on the two sets of buses will be identical.

Features

  • 5 V tolerant inputs and outputs for interfacing with 5 V logic
  • Wide supply voltage range from 1.2 V to 3.6 V
  • CMOS low power consumption
  • Direct interface with TTL levels
  • Inputs accept voltages up to 5.5 V
  • High-impedance when VCC =0 V
  • Complies with JEDEC standard JESD8-B/JESD36
  • ESD protection:
    • HBM EIA/JESD22-A114-B exceeds 2000 V
    • MM EIA/JESD22-A115-A exceeds 200 V.
  • Specified from -40 Cel to +85Cel and from -40 Cel to +125 Cel.

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
74LVC623AD74LVC623AD9352 115 80112Volume productionSOT163-1
(SO20)
TubeStandard Marking74LVC623AD
week 30, 2004
74LVC623AD74LVC623AD-T9352 115 80118Volume productionSOT163-1
(SO20)
Tape reel smdStandard Marking74LVC623AD
week 30, 2004
74LVC623ADB74LVC623ADB9352 115 90112Volume productionSOT339-1
(SSOP20)
TubeStandard Marking74LVC623ADB
week 13, 2005
74LVC623ADB74LVC623ADB-T9352 115 90118Volume productionSOT339-1
(SSOP20)
Reel Pack, SMD, 13"Standard Marking74LVC623ADB
week 13, 2005
74LVC623APW74LVC623APW9352 116 00112Volume productionSOT360-1
(TSSOP20)
TubeStandard Marking74LVC623APW
week 7, 2005
74LVC623APW74LVC623APW-T9352 116 00118Volume productionSOT360-1
(TSSOP20)
Reel Pack, SMD, 13"Standard Marking74LVC623APW
week 7, 2005

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
74LVC623AD9352 115  80112  0.5900     not available
74LVC623AD9352 115  80118  0.5900      Order samples
74LVC623ADB9352 115  90112  0.5900     not available
74LVC623ADB9352 115  90118  0.5900      Order samples
74LVC623APW9352 116  00112  0.5900     not available
74LVC623APW9352 116  00118  0.5900      Order samples

Block diagrams/pinning

Technical documents

Application Notes

AN240; Interfacing 3 Volt and 5 Volt Applications (15-Sep-95)
AN263_2; Power considerations when using CMOS and BiCMOS logic devices (05-Feb-02)

Parametrics/similar products

Type numberPackageDescriptionPropagation Delay(ns)VoltagePower Dissipation ConsiderationsLogic Switching LevelsOutput Drive Capability
74LVC623ADSOT163-1
(SO20)
3.3V Transceiver with Dual Enable;Non-Inverting (3-State) 3.3@3.3V 1.2-3.6 Low Power or Battery Applications TTL +/- 24 mA
74LVC623ADBSOT339-1
(SSOP20)
3.3V Transceiver with Dual Enable;Non-Inverting (3-State) 3.3@3.3V 1.2-3.6 Low Power or Battery Applications TTL +/- 24 mA
74LVC623APWSOT360-1
(TSSOP20)
3.3V Transceiver with Dual Enable;Non-Inverting (3-State) 3.3@3.3V 1.2-3.6 Low Power or Battery Applications TTL +/- 24 mA

Similar products

74LVC623A links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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